Environmentally friendly gelatin-based ink with durability on low surface energy substrates for anti-counterfeiting printing

Fluorescent cellulose nanocrystals/waterborne polyurethane nanocomposites for anti-counterfeiting applications

“…28 Zhang et al have reported mixing of WPU, fluorocarbon quantum dots, and gelatin to prepare eco-friendly composite films and inks, which have been successfully used in anti-counterfeiting labels and printing. 29 Liu et al have reported the synthesis of WPU fluorescent nanodispersions loaded with AIE luminogens and applied them in anti-counterfeit printing inks, transparent fluorescent films, and in vitro fluorescent labeling of cells. 30 Presently, numerous WPU/nanocellulose nanocomposites have been reported that exhibit dramatic enhancement in mechanical properties after the incorporation of minute amounts of nanocellulose.…”